Grechko

03148, 1964 BE, 1964BE, 1973 QV1, 1973QV1, 1979 SA12, 1979SA12, J64B00E, J73Q01V, J79S12A

All data for this body: [vot]

MPC data
Name (number) Grechko (3148)
a 3.10023
e 0.19243
i / sin(i) 0.7304 / 0.01275
q 2.50366
Q 3.69679
ω 42.8586
Node 0.6915
m 102.6989
n 0.1806
Epoch 2460800.5
nobs 4582
nopp 37
Years observed 1964-2025
rms 0.67
Best values
[raw, vot]

Value Standard error
Parent Themis (24)
 
ap 3.107
ep 0.159
sin(ip) 0.028
G 0.150
H 12.410
Mass
D 17.63 0.346
pV 0.070 0.0072
Value
Rotational Period 5.980
Period quality 2
Spectral Class B
Spectral Class Score 3.810
Family data
[raw, vot]

Parent Parent name Family ID Family name Cj Author Reference Method
24 Themis 0 Themis Novakovic 2019EPSC...13.1671N HCM
24 Themis 602 Themis -0.3800 Nesvorny doi.org/10.26033/6cg5-pt13 HCM-2020-08-14
Proper elements data
[raw, vot]

ap ep sin(ip) Author Reference Method
3.1073 0.1592 0.0283 Novakovic_Radovic_Todovic 2003A&A...403.1165K Numeric-Nov-2024
Diameter data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
17.01 0.460 0.460 Masiero 2012ApJ...759L...8M NEATM
18.34 0.594 0.594 Masiero 2011ApJ...741...68M NEATM
18.76 1.180 1.180 Usui 2011PASJ...63.1117U NEATM
19.21 3.840 3.840 Ali-Lagoa 2018A&A...612A..85A NEATM
Albedo data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.058 0.0230 0.0230 Ali-Lagoa 2018A&A...612A..85A NEATM
0.069 0.0085 0.0085 Masiero 2011ApJ...741...68M NEATM
0.080 0.0170 0.0170 Masiero 2012ApJ...759L...8M NEATM
G data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
0.15 MPC-2023-12-94 MPC-2023-12-94 Phot
H data
[raw, vot]

Value Uncertainty up Uncertainty down Author Reference Method
12.41 MPC-2023-12-04 MPC-2023-12-04 Phot
Periods
[raw, vot]

Value Quality Side real or Synodic Author Reference Method
5.983 2 Synodic Waszczak 2015AJ....150...75W Lightcurve
6.029 2 Synodic Erasmus 2020ApJS..247...13E Lightcurve
6.04 2 Synodic Chang 2015ApJS..219...27C Lightcurve
Spectral Class Data
[raw, vot]

Class 1 Class 2 Probability of Class 1 Probability of Class 2 Taxonomy Wavelength Author Reference Method
B 0.635 Bus-Demeo VIS Sergeyev 2022A&A...658A.109S PHOT